Pump



A the following is a wiLsoN n. wIeLn, or reunieron, camronivu.

rum.

specification o! Letters Patent. Pafnted Dec. 14, 1920.

Application mailA July 26, 1918. Berta! No. 246,919.

To all whom it may concern:

as hereinafter described, shown inthe draw- Be it known that I, WmsoN B. WioLE, a in and iinally pointed out in claims.

citizen of the United States, residing at Fullerton in the county of Orange and State of alifornia, have invented new and useful Improvements in Pumps, of which ec'ification.

This invention r ates to umps, and more particularly to pumps for e evating oil from oil wells, and in turn more particularly relates to so-ealled liner pumps in which a detachable liner is provided to serve as the working barrel for the lunger. It is desirable in pum s of this ass to frequently renew such liners as they wear and become sand-pitted and rutted or eaten away by chemical action, and the invention has for a particular ob'ect the provision and formation and com ination of parts and features whereby such working barrel, together with the operating parts of the pump including the working and foot valves, ma be withdrawn from the well and from t eir working zone in the tubing without dsjointing or otherwise disturbing or breaking up the( string of tubing. f

The invention has for a further obj ect the provision of parts and features of the kind mentioned so formed and interrelated that the saine may be brought into and installed in working position b merely lowering the same into the tub y means of the pump rods, and then forci lyv bringing such part's into seated operative positions responsive to a quick drop of the pum rods,'and which arts and features may l' ewise be removed y merely elevating t e pum rods which results indislo the wor of the pump from t eir working positions in the tubing. 1 a

The invention has for further objects th provision of improved pumps and pum eatures of the general nature above state which will be superior in point of relative simplicity and inexpensiveness in construction and' or ization, positiveness in operation, eirlciency in service, durability, com

venience in use and ad'ustmeiit and repair ful provision, formation, combination, as`

sociation, construction and relative arrangement of parts, members and features, all

features i robjects in view,

' broken away in illustration;

s own at a coupling 7 shown at the u Fi 2 is an enlarged detail of portions of thes owingin Fi 1;

Fig. 3 is a detail1r transverse sectional view taken uponthe line :e3-w3, Fig. 2;

Fig. 4 is a detail sectional View, u on an enlarged scale, of features of the owing 1n Fig. 1 below, the features shown in Fig. 2, the parts being in a sli htl altered position to illustrate the mo e o withdrawing the working features of the pump; and,

Fig. 5 is a detail transverse sectional view taken upon the line :v5-fw", Fi 4.

(loi-responding parts in all te figures are designated by the saine reference characters. I Referring with particularity to the draw= ing, A and B de si ate respectively the lower and upper wor ng valves of a pump, the samebeing at the respective ends of a i tubular plunger 6, and all jointly su ported and connected with thepump ro s, (not er end o the cage 8 of the upper wor png valve B. AThe lower working valve A likeis oonnedwithin the cage 9. The p1u n r 6 operates within a liner member C whic fits within the well tubi .D which is shown as comprising a plurality of tub- ,y

ingseetions 10-and 11 connected by a collar l? which is provided with la, downwardly dimimsliing internal diameter producin a choked bore as shown at 13V Fi 1 2, and receiving 'a packing ring 14 is sed between it and theliner member C. he liner member C ranges downwardly by means of a tubular downward extension 15,- to-a redetermined extent, to provide the worlliing surface to accommodate the stroke of the plunger 6; and from the upper thickened end 5* of said liner member ranges downwardl an4 outer tubular section 15 which exten s to the foot valve E, the same bei externallythreaded to the cage 16 of sai foot valve, as at416", such foot valve being provided witli a tapered lower-end portion 16 capable or being wedged into! complementary seat 16 in a tubular fitting 17 threaded onto the lower ei'id of the well tubing 11, as at 17a. Beneath this tubular fitting 17 extends the suction pipe (not shown) through which the Huid is drawn to the foot valve, from the space above which in the working barrel, comprising the liner 15 and its extension 15", such fluid is elevated by the working valves and B and the plunger 6 with which they are connested. n i

The upper end of the liner top 15 is Yformed into a sharply downwardly beveled shoulder 15 adapted to receive the thrust of the lower end of the cage 8 of the working valve B which provides a shoulder 8*L to that end. Likewise' the upper end of the cage 9 of the lower working valve A provides a shoulder 9 to eng-ige with the lower end of the liner extension 3.5, at a shoulder 4i-5d, to serve to withdraw the liner and foot waive from the well tubing when the pump .'ods are elevated. In this manner the foot .-alve, liner 15 with its downward extension 15b, working valves, and plunger 'are all Withdrawn f rom the tubing D, for replacement or repair of such valves or of the liner and its extension, or of 'the plunger 6. When these parts are lowered back' into the well, the packing device 14, which ts within a channel 145 in the upper liner portion 15", is wedged into place, under the pressure of the shoulder 8a upon the shoulder 15", as the rods are dropped;'and the same dro ping action forces down the foot valve into its seat 16 at its tapered lower end 16", throu h the down-thrust of the extension 15b o the liner. The sharply chamfered or beveled shoulder formation at 15 prevents any sand which may pass through the working valve cage 8 from getting down into the space between the upper part ofthe liner and the pump tubing, from working between the co-acting surfaces of the liner and the plunger.

The operation, method of use and advan ta es of the resent improvements 'in pumps, w11 be rea ily understood from the foregoing description and statement, taken in connection with the accompanying drawing.

The working valve B is rovided with an annular seat 8b, the body-o which fits down within the plunger 6 and such seat is rovided with an annular shoulder 8 w ich overla s the up r end ofthe plunger 6 and is hel' 'thereto Iliey the cage 8, which has a matched shoulder V8d over ying the shoulder 8, the. threads 8a thus serving to hold the cage and the seat both to the lunger.- By this formation I am thus enab ed to obtain a maximum of iow through the annular' seat 8', and also a positive and efficient assembla of the arts.

The ower wor g valve and foot valve disclosed in the drawing and described in the foregoing description, are organized in accordance with the disclosure of a patent for pump Valves, issued to me January 30, 1917, No. 1,214,400. While the present invention is not to be understood as to be limited in its practice to this articular organization of foot valve and ower workin valve, nevertheless the same enter with hig efficiency and satisfaction into the use of such present invention.

It is manifest that many changes and variations and modifications may be made with respect to the structure described and shown in the drawing, in adapting the' improvements to varying conditions of use and service, without. departin from the spirit of the invention and a air interpretation thereof.

Having thus disclosed my invention, I claim and desire to secure by Letters Patent:

1. The combination with a tubular well casing having u per and lower seats therein, of a removals e liner provided with packing means for engaging the upper seat, a tubular extension extending downwardly from the liner, a foot valve cage carried by the extension and adapted to engage the lower seat, a tubular lunger mounted to reciprocate within the lin'er, ca es applied to the ends of the plunger and irmmg exterior shoulders thereon which are adapted to engage the corres onding ends of the liner for removing the liner and associated parts from the casing or placing them in position when the plunger is moved beyond an ordinary pump stroke, and valves in the respective cages.

2. The combination with a tubular well easin having upper and lower seats therein, o a removab e liner having an enlarged upper end which is provided with packing -means for engaging the upper seat, a tubular extension surrounding the exterior of the. liner and extendin downwardly be` low the same a foot va ve cageapplied to the lower end pf the tubular extension and removably engaging the lower seat of the casing, a tubular plunger mounted to reciprocate within the liner, cages applied to the ends o f the plunger, and valves in the respective cages, said ca es u on the 1unger providing exterior s oul ers whic are adaplted to engage the c orres nding ends of t e liner for enabling the iner and associated arts to be removed from the casing or place 1n position therein with the plunger. l

3 The combination with a tubular well casing provided with an interior seat, of a. remova le liner having the upper end thereof sharply beveled, liner for engaging t ing, a tubular cate within the ackingmeans upon the e seat of the well caslunger mounted to reciproiner, working valves mounted upon the plunger, 'and a-foot valveax'- ranged within the casingin co erative relation with the plunger and wor 'ng valves, the sharply beveled upper edge of the liner preventing sand and grit from working its way between the plunger and liner.

4. The combination with a tubular well casing having independent up r and lower seats therein, of a removable der provided with packing means for engaging the u per seat, a oot valve cage carried by t e removable liner and adapted to engage the lower seat, a. tubular plunger mounted to reciprocate within the liner, and cages applied to-the ends of the plunger and form- 15 lng exterior shoulders thereon which ere adapted to engage the corresponding ends of the liner for.removing the liner and associated parts from the casing or placing them in position therein when the plun er 20 is moved beyond an ordinary pump stro e.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

WILSON B. WIGLE. Witnesses:

RAYMOND Ivins BLAKnsLnE, WILLIS S. MITCHELL. 

